I recently smelled mildew in my bathroom. After removing drywall I found the mold and that the insulation was wet. The were no apparent leaks in the exposed plumbing or drains. The exterior walls are stucco with a limestone rock base. The area between the exterior rock and interior particle board appears to be retaining moister and some of the particle board was dry rotted. Any suggestions to eliminate the moisture coming in before closing the walls?
<Any suggestions to eliminate the moisture coming in before closing the
You have to make sure the wetness is not coming in from around the tub, where it meets the wall. Joints that need caulking?
Can you post a picture?
The wall facing the exterior may need a vapor barrier or if it had one, it may not have been installed properly.
Do you have a exhaust fan for the bathroom?